Pretty much written off as bad (i.e. for White) in old textbooks, it's amazing how popular this whole 9 g4 Be6 10 Nxe6 thing has become. With results looking quite good for White and there being relatively little theory to learn, I guess it is no great surprise that plenty of Yugoslav Attack exponents have been jumping on the bandwagon.
Anyway this excellent annotation of Chirila-Jianu by GM Gawain Jones on ChessPublishing is full of goodies. First up we see 14 h5! get its debut outing:
and then we discover why the f3-pawn is no free lunch because of the monstrous tactic 15 Nd5!.
This line is definitely worth Black taking seriously, but don't worry because the game's notes offer salvation, with 14...Nc4 being especially interesting.